Question

英语中 be动词 与 do/does/did的应用方法？

Answer 1

be 实意动词，含义“是”“存在” 例如 The tree is green. There is a car in the garage.
be 助动词 没有具体含义， 完成时态 例如， We are playing cards tegether.
be 助动词 没有具体含义， 完成语态 例如， He was beaten by his father.
be 有人称和时态区别 现在时态 am is are 过去时态 was were
do does did 是 do的三个形式 是原型 do 单三人称 does 过去式 did
可以是实意“做” I did a good thing yesterday. She did her homework carefully.
还做助动词，常用在问话句和否定句中，有时也用在强调句中。
例如：
Do you like English？
He dosen't speak before public.
I do like playing games.

Answer 2

首先Be是可以做实意动词的,be更多的时候是做助动词的,Be帮助构成被动和进行,Do一般时Did过去Does第三人称